201111100221041 has 2 divisors, whose sum is σ = 201111100221042. Its totient is φ = 201111100221040.

The previous prime is 201111100221019. The next prime is 201111100221043. The reversal of 201111100221041 is 140122001111102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200590002480400 + 521097740641 = 14162980^2 + 721871^2 .

It is a cyclic number.

It is not a de Polignac number, because 201111100221041 - 2⁴² = 196713053709937 is a prime.

Together with 201111100221043, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201111100221043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555550110520 + 100555550110521.

It is an arithmetic number, because the mean of its divisors is an integer number (100555550110521).

Almost surely, 2^{201111100221041} is an apocalyptic number.

It is an amenable number.

201111100221041 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111100221041 is an equidigital number, since it uses as much as digits as its factorization.

201111100221041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201111100221041 its reverse (140122001111102), we get a palindrome (341233101332143).

The spelling of 201111100221041 in words is "two hundred one trillion, one hundred eleven billion, one hundred million, two hundred twenty-one thousand, forty-one".